High voltage fuse cutout is used in primary overhead feeder lines and taps to protect distribution transformers from short-circuits and overloads. When the current exceeds a given value for a certain time, the fuse will melt, and the switch mechanism to visibly open, disconnecting transformer from the line. It has the characteristics of economy, convenient operation, and strong adaptability to outdoor environments. With function of an isolating switch, cutouts create a safe working environment for power line and equipment in the maintenance section.
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